Verapamil EP Impurity M HCl (Mixture of Diastereomers) CAS 190850-50-1

Description

Compared with other compounds in its class, the molecular weight of 736.39 g/mol gives Verapamil EP Impurity M HCl (Mixture of Diastereomers) distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

Verapamil EP Impurity M HCl (Mixture of Diastereomers) (CAS 190850-50-1) is a certified pharmaceutical impurity reference standard with the molecular formula C42H57N3O6HCl and a molecular weight of 736.39 g/mol.

Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution, Verapamil EP Impurity M HCl (Mixture of Diastereomers) is typically pale yellow to yellow amorphous powder. Its solid-state physicochemical attributes — including a molecular weight of 736.39 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.

This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.

The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.

Physical & Chemical Properties

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